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Rifle Parts

Whether you're building a new rifle from scratch or looking to upgrade an existing firearm, our vast selection of rifle parts has everything you are going to need in that journey. At Rainier Arms' selection of rifle parts, you can find a wide variety of products including lower and upper parts, trigger parts, muzzle devices, and many more. 

Explore our selection of high-quality parts coming from various leading manufacturers like Strike Industries, Magpul, BCM, and many more.

Also, don't forget to check our specially-made Rainier Arms barrels for your firearms.

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  9. Bravo Company MFG (BCM) Gunfighter AR-15 MCMR Rail - 7"
    Bravo Company MFG (BCM) Gunfighter AR-15 MCMR Rail - 7"
    $206.95
    Out of stock
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  10. Bravo Company MFG (BCM) Gunfighter AR-15 MCMR Rail - 15"
    Bravo Company MFG (BCM) Gunfighter AR-15 MCMR Rail - 15"
    $234.95
    Out of stock
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  11. Bravo Company MFG (BCM) Extended M3 5.56 Compensator
    Bravo Company MFG (BCM) Extended M3 5.56 Compensator
    $94.95
    Out of stock
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  14. Bravo Company MFG (BCM) Raider M10 M-LOK Handguard - 10"
    Bravo Company MFG (BCM) Raider M10 M-LOK Handguard - 10"
    $239.00
    Out of stock
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Items 65-80 of 85

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  1. Manufacturer Bravo Company MFG (BCM) Remove This Item
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Barrel Length
  1. 7" 1 item
  2. 9" 2 items
  3. 11.5" 3 items
  4. 14.5" 5 items
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  6. 18" 2 items
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  1. 300 Blackout 3 items
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  1. Receiver Parts 31 items
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  15. Compensator 9 items
  16. End Plate 1 item
  17. Flash Hider 1 item
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  19. Handguard 1 item
  20. Lower Parts Kit 1 item
  21. Pistol Grip 5 items
  22. Rail Adapter 1 item
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  24. Stock 4 items
  25. Trigger 1 item
  26. Trigger Guard 1 item
  27. Vertical Grip 2 items
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  1. 1/2x28 (.22 cal) 7 items
  2. 5/8x24 (.30 cal) 1 item
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  1. In stock 48 items
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